David teets



(No Model.)

D. TEETSI CHIMNEY OOWL.

Patented Feb. 12, 1889. i jz/yi.

UNITED STATES PATENT E IcE,

DAVID TEETS, OF NElY YORK, 1'. Y.

CH l M N EY-COWL.

SPECIFICATION forming part of Letters Patent No. 397,669, dated February 12, 1889. Application filed April 3, 1888. Renewed December 14, 1888. Serial No. 293,659. '(No model.)

To ail whom it may concern.-

Be it known that 1, DAVID TEETS, of the city, county, and State of New York, have invented a new and Improved Chimney-Cowl, of which the following is a full, clear, and exact description.

My invention relates to an improvementin 1 chimney or ventilator cowls, and has for its object to provide for the free discharge of the products of combustion at all times and to ob-v viate the objectionable downdraft.

The invention consists in the construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.-

Reference is to be had to the accompanying drawings, formin apartof this specification, in which similar figures of reference indicate corres mnding parts in both the views.

Figure 1 is a side elevation, partly in section; and Fig. 2 is a bottom plan view.

In carrying out the invention the body 10, which is prefcral'ily cylindrical in contourand adapted for contact with the chimney through the medium of a base piece or plate, is connected with an upper annular section orring, 1 l, by means of a series of equidistant vertical strips, 12,which strips are essentially U shaped in cross-section, as shown in Fig. 2. The strips 12 are attached so that thciredges turn outward from the body-sections 10 and 11, and are secured toboth of the aforesaid by means of rivets 13, solder, or :in any other approved or suitable manner. iythis construction the body is provided with a series oflongitinlinal peripheral slots.

In completing the body of the ventilator a series of semi-cylindrical conductors, 14, are T employed, whose side edges are turned outi ward, thus forming flanges 15, as best shown l in liig. 2. These conductors are adapted to l cover the spaces intervening the U-shaped conncctirig-plates; and to that end thcllanges 15 of the conductors rest on the side edges of the plates 12, and are preferably united there a to bya series of rivets, 16, as best illustrated in Fig. 2. The rivets 16 are usually placed one at each end of the conductors and one in the center, the end rivets passing, respect ively, through the lower cylindrical body, 10, v and through the upper section, 11,whereby all the parts are securely and rigidly united. By attaching the conductors 14 in this manner their cylindrical surfaces are upon the outer sideof the ven tilator and form a series of passages leading from thelower section, 10, upward in the direction of and beneath a cap, 17, which cap is attached to the body-section 11 by suitable brackets, 18. The cap 17 is preferably conical in shape, and so attached to the section 11 that a space, 19, will intervene the upper surface of the cap and the upper edge of the said section. The cap 17 is also made of such a diameter that the outer edges will project beyond and over the conductors 1 Thus in operation, should the downdraft be severe, the smoke will find unobstructed exit through the several conductors down ward and be effectually prevented from returning to the flue, a portion of the smoke also finding its way out between the section 1 l and the cap. Ordinarily, should an updralt occur, the cm'nluctors facilitate the exit of the smoke from the body ot'the ventilator by forming a section immediately below the cap.

By reference to the drawings in the above description it will be readily seen that the construction of the ventilator is not only simple, but economical and durable.

Having thus described my invention, 1 claim as new an d desire to secure by liette rs Patent 1. In a chimney-cowl,the combination,with a series of vertical equidistant strips separated by slots, of a series of seini-eylindrical v plates arranged vertically, covering said slots,

and serving as sinoke-condnctors, as shown and tlORUllbHl.

2. In a chimney-cowl, the combination,with the lower cylinder, 12, the upper ring, 1.1, and the equidistant essentially U-shapcd plates 15, which connect them, of a series of semicylindrical conductors attached to the coni'lecting-plates and spanning the space inter vening said plates, and a cap attached to but separated from the upper ring, substantially as and for the purpose specified.

DAVID TEETS.

Witnesses:

J. F. AOKER, J11, C. SEDGWICK. 

